Hyundai Santa Fe: Heated Oxygen Sensor (HO2S). Description and Operation - Engine Control System - Engine Control/Fuel System - Hyundai Santa Fe DM 2013-2018 Service ManualHyundai Santa Fe: Heated Oxygen Sensor (HO2S). Description and Operation

Description

Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio.
The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.


    Knock Sensor (KS). Repair procedures
    Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold. (Refer to E ...

    Heated Oxygen Sensor (HO2S). Specifications
    Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.5 ~ 4.0 [20∞C(68∞F)] HO2S [Bank 1/Sensor 2] ...

    See also:

    Repair procedures
    Removal 1. Remove the front bumper cover. 2. Remove the bolts and disconnect the horn connectors, then remove the high pitch horn ...

    Audio Unit. Repair procedures
    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the center air vent duct (A). 3. Se ...

    Tail Gate Back Panel. Repair procedures
    Replacement Х Put on gloves to protect your hands. ...